用冰敷 doesn't work, give your B intake 退燒藥. my B had the same prb twice (4 and 6 mths old, and cried like hell after having 4 mths injection for many hrs. I called different nurses and they said 用冰敷 but didn't work until I gave my B 退燒藥 as it also works 退燒藥
my B's thighs also 幾腫硬, but after eating 退燒藥 for 10 mins, the 腫 gone. works like miracle!